A:
Positive:
1 x 12122155 x 24244323 x 5270583 x 14605115 x 10541127 x 9545415 x 2921635 x 1909
Negative:
-1 x -1212215-5 x -242443-23 x -52705-83 x -14605-115 x -10541-127 x -9545-415 x -2921-635 x -1909
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 1,212,215, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 1,212,215 | |
| -1 | -1,212,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,212,215.
Example:
1 x 1,212,215 = 1,212,215
and
-1 x -1,212,215 = 1,212,215
Notice both answers equal 1,212,215
With that explanation out of the way, let's continue. Next, we take the number 1,212,215 and divide it by 2:
1,212,215 ÷ 2 = 606,107.5
If the quotient is a whole number, then 2 and 606,107.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,212,215 | |
| -1 | -1,212,215 |
Now, we try dividing 1,212,215 by 3:
1,212,215 ÷ 3 = 404,071.6667
If the quotient is a whole number, then 3 and 404,071.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,212,215 | |
| -1 | -1,212,215 |
Let's try dividing by 4:
1,212,215 ÷ 4 = 303,053.75
If the quotient is a whole number, then 4 and 303,053.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 1,212,215 | |
| -1 | 1,212,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 83 | 115 | 127 | 415 | 635 | 1,909 | 2,921 | 9,545 | 10,541 | 14,605 | 52,705 | 242,443 | 1,212,215 |
| -1 | -5 | -23 | -83 | -115 | -127 | -415 | -635 | -1,909 | -2,921 | -9,545 | -10,541 | -14,605 | -52,705 | -242,443 | -1,212,215 |
Here are some more numbers to try:
Try the factor calculator